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-rw-r--r--board/hymod/flash.c490
1 files changed, 0 insertions, 490 deletions
diff --git a/board/hymod/flash.c b/board/hymod/flash.c
deleted file mode 100644
index 02e519c..0000000
--- a/board/hymod/flash.c
+++ /dev/null
@@ -1,490 +0,0 @@
-/*
- * (C) Copyright 2000
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier: GPL-2.0+
- *
- * Hacked for the Hymod board by Murray.Jensen@csiro.au, 20-Oct-00
- */
-
-#include <common.h>
-#include <mpc8260.h>
-#include <board/hymod/flash.h>
-
-flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */
-
-/*-----------------------------------------------------------------------
- * Protection Flags:
- */
-#define FLAG_PROTECT_SET 0x01
-#define FLAG_PROTECT_CLEAR 0x02
-
-/*-----------------------------------------------------------------------
- */
-
-/*
- * probe for flash bank at address "base" and store info about it
- * in the flash_info entry "fip". Fatal error if nothing there.
- */
-static void
-bank_probe (flash_info_t *fip, volatile bank_addr_t base)
-{
- volatile bank_addr_t addr;
- bank_word_t word;
- int i;
-
- /* reset the flash */
- *base = BANK_CMD_RST;
-
- /* put flash into read id mode */
- *base = BANK_CMD_RD_ID;
-
- /* check the manufacturer id - must be intel */
- word = *BANK_REG_MAN_CODE (base);
- if (word != BANK_FILL_WORD (INTEL_MANUFACT&0xff))
- panic ("\nbad manufacturer's code (0x%08lx) at addr 0x%08lx",
- (unsigned long)word, (unsigned long)base);
-
- /* check the device id */
- word = *BANK_REG_DEV_CODE (base);
- switch (word) {
-
- case BANK_FILL_WORD (INTEL_ID_28F320J5&0xff):
- fip->flash_id = FLASH_MAN_INTEL | FLASH_28F320J5;
- fip->sector_count = 32;
- break;
-
- case BANK_FILL_WORD (INTEL_ID_28F640J5&0xff):
- fip->flash_id = FLASH_MAN_INTEL | FLASH_28F640J5;
- fip->sector_count = 64;
- break;
-
- case BANK_FILL_WORD (INTEL_ID_28F320J3A&0xff):
- fip->flash_id = FLASH_MAN_INTEL | FLASH_28F320J3A;
- fip->sector_count = 32;
- break;
-
- case BANK_FILL_WORD (INTEL_ID_28F640J3A&0xff):
- fip->flash_id = FLASH_MAN_INTEL | FLASH_28F640J3A;
- fip->sector_count = 64;
- break;
-
- case BANK_FILL_WORD (INTEL_ID_28F128J3A&0xff):
- fip->flash_id = FLASH_MAN_INTEL | FLASH_28F128J3A;
- fip->sector_count = 128;
- break;
-
- default:
- panic ("\nbad device code (0x%08lx) at addr 0x%08lx",
- (unsigned long)word, (unsigned long)base);
- }
-
- if (fip->sector_count >= CONFIG_SYS_MAX_FLASH_SECT)
- panic ("\ntoo many sectors (%d) in flash at address 0x%08lx",
- fip->sector_count, (unsigned long)base);
-
- addr = base;
- for (i = 0; i < fip->sector_count; i++) {
- fip->start[i] = (unsigned long)addr;
- fip->protect[i] = 0;
- addr = BANK_ADDR_NEXT_BLK (addr);
- }
-
- fip->size = (bank_size_t)addr - (bank_size_t)base;
-
- /* reset the flash */
- *base = BANK_CMD_RST;
-}
-
-static void
-bank_reset (flash_info_t *info, int sect)
-{
- volatile bank_addr_t addr = (bank_addr_t)info->start[sect];
-
-#ifdef FLASH_DEBUG
- printf ("writing reset cmd to addr 0x%08lx\n", (unsigned long)addr);
-#endif
-
- *addr = BANK_CMD_RST;
-}
-
-static void
-bank_erase_init (flash_info_t *info, int sect)
-{
- volatile bank_addr_t addr = (bank_addr_t)info->start[sect];
- int flag;
-
-#ifdef FLASH_DEBUG
- printf ("erasing sector %d, addr = 0x%08lx\n",
- sect, (unsigned long)addr);
-#endif
-
- /* Disable intrs which might cause a timeout here */
- flag = disable_interrupts ();
-
-#ifdef FLASH_DEBUG
- printf ("writing erase cmd to addr 0x%08lx\n", (unsigned long)addr);
-#endif
- *addr = BANK_CMD_ERASE1;
- *addr = BANK_CMD_ERASE2;
-
- /* re-enable interrupts if necessary */
- if (flag)
- enable_interrupts ();
-}
-
-static int
-bank_erase_poll (flash_info_t *info, int sect)
-{
- volatile bank_addr_t addr = (bank_addr_t)info->start[sect];
- bank_word_t stat = *addr;
-
-#ifdef FLASH_DEBUG
- printf ("checking status at addr 0x%08lx [0x%08lx]\n",
- (unsigned long)addr, (unsigned long)stat);
-#endif
-
- if ((stat & BANK_STAT_RDY) == BANK_STAT_RDY) {
- if ((stat & BANK_STAT_ERR) != 0) {
- printf ("failed on sector %d [0x%08lx] at "
- "address 0x%08lx\n", sect,
- (unsigned long)stat, (unsigned long)addr);
- *addr = BANK_CMD_CLR_STAT;
- return (-1);
- }
- else
- return (1);
- }
- else
- return (0);
-}
-
-static int
-bank_write_word (volatile bank_addr_t addr, bank_word_t value)
-{
- bank_word_t stat;
- ulong start;
- int flag, retval;
-
- /* Disable interrupts which might cause a timeout here */
- flag = disable_interrupts ();
-
- *addr = BANK_CMD_PROG;
-
- *addr = value;
-
- /* re-enable interrupts if necessary */
- if (flag)
- enable_interrupts ();
-
- retval = 0;
-
- /* data polling for D7 */
- start = get_timer (0);
- do {
- if (get_timer (start) > CONFIG_SYS_FLASH_WRITE_TOUT) {
- retval = 1;
- goto done;
- }
- stat = *addr;
- } while ((stat & BANK_STAT_RDY) != BANK_STAT_RDY);
-
- if ((stat & BANK_STAT_ERR) != 0) {
- printf ("flash program failed [0x%08lx] at address 0x%08lx\n",
- (unsigned long)stat, (unsigned long)addr);
- *addr = BANK_CMD_CLR_STAT;
- retval = 3;
- }
-
-done:
- /* reset to read mode */
- *addr = BANK_CMD_RST;
-
- return (retval);
-}
-
-/*-----------------------------------------------------------------------
- */
-
-unsigned long
-flash_init (void)
-{
- int i;
-
- /* Init: no FLASHes known */
- for (i=0; i<CONFIG_SYS_MAX_FLASH_BANKS; ++i) {
- flash_info[i].flash_id = FLASH_UNKNOWN;
- }
-
- bank_probe (&flash_info[0], (bank_addr_t)CONFIG_SYS_FLASH_BASE);
-
- /*
- * protect monitor and environment sectors
- */
-
-#if CONFIG_SYS_MONITOR_BASE == CONFIG_SYS_FLASH_BASE
- (void)flash_protect (FLAG_PROTECT_SET,
- CONFIG_SYS_MONITOR_BASE,
- CONFIG_SYS_MONITOR_BASE+monitor_flash_len-1,
- &flash_info[0]);
-#endif
-
-#if defined(CONFIG_SYS_FLASH_ENV_ADDR)
- (void)flash_protect (FLAG_PROTECT_SET,
- CONFIG_SYS_FLASH_ENV_ADDR,
-#if defined(CONFIG_SYS_FLASH_ENV_BUF)
- CONFIG_SYS_FLASH_ENV_ADDR + CONFIG_SYS_FLASH_ENV_BUF - 1,
-#else
- CONFIG_SYS_FLASH_ENV_ADDR + CONFIG_SYS_FLASH_ENV_SIZE - 1,
-#endif
- &flash_info[0]);
-#endif
-
- return flash_info[0].size;
-}
-
-/*-----------------------------------------------------------------------
- */
-void
-flash_print_info (flash_info_t *info)
-{
- int i;
-
- if (info->flash_id == FLASH_UNKNOWN) {
- printf ("missing or unknown FLASH type\n");
- return;
- }
-
- switch (info->flash_id & FLASH_VENDMASK) {
- case FLASH_MAN_INTEL: printf ("INTEL "); break;
- default: printf ("Unknown Vendor "); break;
- }
-
- switch (info->flash_id & FLASH_TYPEMASK) {
- case FLASH_28F320J5: printf ("28F320J5 (32 Mbit, 2 x 16bit)\n");
- break;
- case FLASH_28F640J5: printf ("28F640J5 (64 Mbit, 2 x 16bit)\n");
- break;
- case FLASH_28F320J3A: printf ("28F320J3A (32 Mbit, 2 x 16bit)\n");
- break;
- case FLASH_28F640J3A: printf ("28F640J3A (64 Mbit, 2 x 16bit)\n");
- break;
- case FLASH_28F128J3A: printf ("28F320J3A (128 Mbit, 2 x 16bit)\n");
- break;
- default: printf ("Unknown Chip Type\n");
- break;
- }
-
- printf (" Size: %ld MB in %d Sectors\n",
- info->size >> 20, info->sector_count);
-
- printf (" Sector Start Addresses:");
- for (i=0; i<info->sector_count; ++i) {
- if ((i % 5) == 0)
- printf ("\n ");
- printf (" %08lX%s",
- info->start[i],
- info->protect[i] ? " (RO)" : " "
- );
- }
- printf ("\n");
- return;
-}
-
-/*
- * The following code cannot be run from FLASH!
- */
-
-/*-----------------------------------------------------------------------
- */
-
-int
-flash_erase (flash_info_t *info, int s_first, int s_last)
-{
- int prot, sect, haderr;
- ulong start, now, last;
- int rcode = 0;
-
-#ifdef FLASH_DEBUG
- printf ("\nflash_erase: erase %d sectors (%d to %d incl.) from\n"
- " Bank # %d: ", s_last - s_first + 1, s_first, s_last,
- (info - flash_info) + 1);
- flash_print_info (info);
-#endif
-
- if ((s_first < 0) || (s_first > s_last)) {
- if (info->flash_id == FLASH_UNKNOWN) {
- printf ("- missing\n");
- } else {
- printf ("- no sectors to erase\n");
- }
- return 1;
- }
-
- prot = 0;
- for (sect = s_first; sect <= s_last; ++sect) {
- if (info->protect[sect]) {
- prot++;
- }
- }
-
- if (prot) {
- printf ("- Warning: %d protected sector%s will not be erased\n",
- prot, (prot > 1 ? "s" : ""));
- }
-
- start = get_timer (0);
- last = 0;
- haderr = 0;
-
- for (sect = s_first; sect <= s_last; sect++) {
- if (info->protect[sect] == 0) { /* not protected */
- ulong estart;
- int sectdone;
-
- bank_erase_init (info, sect);
-
- /* wait at least 80us - let's wait 1 ms */
- udelay (1000);
-
- estart = get_timer (start);
-
- do {
- now = get_timer (start);
-
- if (now - estart > CONFIG_SYS_FLASH_ERASE_TOUT) {
- printf ("Timeout (sect %d)\n", sect);
- haderr = 1;
- rcode = 1;
- break;
- }
-
-#ifndef FLASH_DEBUG
- /* show that we're waiting */
- if ((now - last) > 1000) { /* every second */
- putc ('.');
- last = now;
- }
-#endif
-
- sectdone = bank_erase_poll (info, sect);
-
- if (sectdone < 0) {
- haderr = 1;
- rcode = 1;
- break;
- }
-
- } while (!sectdone);
-
- if (haderr)
- break;
- }
- }
-
- if (haderr > 0)
- printf (" failed\n");
- else
- printf (" done\n");
-
- /* reset to read mode */
- for (sect = s_first; sect <= s_last; sect++) {
- if (info->protect[sect] == 0) { /* not protected */
- bank_reset (info, sect);
- }
- }
- return rcode;
-}
-
-/*-----------------------------------------------------------------------
- * Write a word to Flash, returns:
- * 0 - OK
- * 1 - write timeout
- * 2 - Flash not erased
- * 3 - Program failed
- */
-static int
-write_word (flash_info_t *info, ulong dest, ulong data)
-{
- /* Check if Flash is (sufficiently) erased */
- if ((*(ulong *)dest & data) != data)
- return (2);
-
- return (bank_write_word ((bank_addr_t)dest, (bank_word_t)data));
-}
-
-/*-----------------------------------------------------------------------
- * Copy memory to flash, returns:
- * 0 - OK
- * 1 - write timeout
- * 2 - Flash not erased
- * 3 - Program failed
- */
-
-int
-write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
-{
- ulong cp, wp, data;
- int i, l, rc;
-
- wp = (addr & ~3); /* get lower word aligned address */
-
- /*
- * handle unaligned start bytes
- */
- if ((l = addr - wp) != 0) {
- data = 0;
- for (i=0, cp=wp; i<l; ++i, ++cp) {
- data = (data << 8) | (*(uchar *)cp);
- }
- for (; i<4 && cnt>0; ++i) {
- data = (data << 8) | *src++;
- --cnt;
- ++cp;
- }
- for (; cnt==0 && i<4; ++i, ++cp) {
- data = (data << 8) | (*(uchar *)cp);
- }
-
- if ((rc = write_word (info, wp, data)) != 0) {
- return (rc);
- }
- wp += 4;
- }
-
- /*
- * handle word aligned part
- */
- while (cnt >= 4) {
- data = 0;
- for (i=0; i<4; ++i) {
- data = (data << 8) | *src++;
- }
- if ((rc = write_word (info, wp, data)) != 0) {
- return (rc);
- }
- wp += 4;
- cnt -= 4;
- }
-
- if (cnt == 0) {
- return (0);
- }
-
- /*
- * handle unaligned tail bytes
- */
- data = 0;
- for (i=0, cp=wp; i<4 && cnt>0; ++i, ++cp) {
- data = (data << 8) | *src++;
- --cnt;
- }
- for (; i<4; ++i, ++cp) {
- data = (data << 8) | (*(uchar *)cp);
- }
-
- return (write_word (info, wp, data));
-}
-
-/*-----------------------------------------------------------------------
- */
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